Structure via PubChem · Public domain (PubChem)
barium oxide
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Chemical data
- Formula
- BaO
- Molecular weight
- 153.33 g/mol
- IUPAC name
- oxobarium
- SMILES
- O=[Ba]
- InChIKey
- QVQLCTNNEUAWMS-UHFFFAOYSA-N
- Polar surface area
- 17.1 Ų
- H-bond donors
- 0
- H-bond acceptors
- 1
- Formal charge
- 0
via PubChem
Wikidata facts
- Mass
- 153.900162
- Image
- Barium oxide.JPG
Show 6 more facts
- chemical formula
- BaO
- melting point
- 1920
- canonical SMILES
- O=[Ba]
- Commons category
- Barium oxide
- boiling point
- 2000
- standard enthalpy of formation
- -558.1
via Wikidata · CC0
~3 min read
Article
Barium oxide, also known as baria, is a white hygroscopic non-flammable compound with the formula BaO. It has a cubic structure and is used in cathode-ray tubes, crown glass, and catalysts. It is harmful to human skin and if swallowed in large quantity causes irritation. Excessive quantities of barium oxide may lead to death.
It is prepared by heating barium carbonate with coke, carbon black or tar or by thermal decomposition of barium nitrate.